1) What did Hans try doing ? Why ?

He tried fishing ,he tied a hook to a rope and put a piece of meet

2) What did he catch ?

an extinct fish fish . it had a flat head but no eyes nor tail

3) What did lidenbrock try to know ? How ?

The depth of the sea .he tied his picaxe to a rope and threw it but it didn't reach the bottom

4) What did he find on the picaxe ?

the marks of teeth of a monster

5) What did they find in the sea ? Did it attack them ?

two monsters they didn't attack them but after two hours one of them killed the other

6) What did they find in the middle of the sea ? What did they call it ?

An island they called it Axel island